256-bit SSL HTTP/1.1 IPv4  

Filter List Generator

This will allow you generate a filter list based on live registry data.
(You can also use a regular 'whois' client against filtergen.dan.me.uk to get the same output)

Options: Enable Debug Mode
Generate IPv6 Filter
Generate prefix-list called
      Permit up-to prefix size: / (CIDR size, e.g. 24 or 64)
Data Source: RIPE
AS-SET to Query:
Output from Filter List Generator:
% Filter List Generator
% Copyright(c) 2023, Daniel Austin MBCS
% usage:
%   [-D] [-6] [-RIPE | -RADB | -APNIC] [-f filtername -t filtertype [-upto N]] as-set
% -D for DEBUG mode (shows working calculations)
% -6 for IPv6 filter generation
% -RIPE for whois.ripe.net lookups
% -RADB for whois.radb.net lookups
% -APNIC for whois.apnic.net lookups
% -f will generate a cisco-style filterlist called 'filtername' (use -t filtertype as follows)
%      cisco (default)
%      iox-xr
%      juniper (basic support)
%      force10
%      mikrotik
% Additionally, if using -f/-t you may specify -upto N where N is the prefix size to permit up-to
% Using whois.radb.net for lookups
% Generating filter list for 'AS14618'
% end of filter list for 'AS14618' (1578 prefixes found) 
% took 0.59 secs for query (0.19 secs of connection time)
% used 1 connections -- 4919 lines of whois data parsed

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